64 resultados para OIR
Resumo:
Context. Since its launch, the X-ray and γ-ray observatory INTEGRAL satellite has revealed a new class of high-mass X-ray binaries (HMXB) displaying fast flares and hosting supergiant companion stars. Optical and infrared (OIR) observations in a multi-wavelength context are essential to understand the nature and evolution of these newly discovered celestial objects. Aims. The goal of this multiwavelength study (from ultraviolet to infrared) is to characterise the properties of IGR J16465−4507, to confirm its HMXB nature and that it hosts a supergiant star. Methods. We analysed all OIR, photometric and spectroscopic observations taken on this source, carried out at ESO facilities. Results. Using spectroscopic data, we constrained the spectral type of the companion star between B0.5 and B1 Ib, settling the debate on the true nature of this source. We measured a high rotation velocity of v = 320 ± 8km s-1 from fitting absorption and emission lines in a stellar spectral model. We then built a spectral energy distribution from photometric observations to evaluate the origin of the different components radiating at each energy range. Conclusions. We finally show that, having accurately determined the spectral type of the early-B supergiant in IGR J16465−4507, we firmly support its classification as an intermediate supergiant fast X-ray transient (SFXT).
Resumo:
This study analyzes the process of semantic change by which the Old Catalan verb sentir developed from a meaning based on general perception to one implying auditory perception. In particular, the article shows that by the end of the 13th century the verb sentir had only semanticized the perception of non-linguistic auditory stimuli and had not fused completely with the meaning of the verb oir, as was the case with the evolution of SĔNTĪRE in other Romance languages (such as Peninsular Spanish). Our study has been based on data analysis of an electronic linguistic corpus using the concepts of E. C. Traugott’s Invited Inferencing Theory of Semantic Change (IITSC) (2012) and the concept of evidentiality.
Resumo:
Contiene: Todo lo vence el amor (pp. 1-47) ; Mazariegos y Monsalves (pp. 48-98) ; El hechizado por fuerza (pp. 99-144) ; El custodio de la Ungría San Juan Capistrano (pp. 145-194) ; La Poncella de Orleans (pp. 195-242) ; Áspides ay basiliscos (Zarzuela) (pp. 243-276) ; Judas Iscariote (pp. 277-327) ; Por oir Missa y dar cebada, nunca se perdió jornada (pp. 328-379) ; Siempre ay que embidiar amando (pp. 380-439)
Resumo:
El pandillismo es un fenómeno social que se presenta en las principales ciudades de Colombia desde hace varias décadas, sin embargo, solo en los últimos años el fenómeno a comenzado a acaparar mayor atención mediática e institucional. El pandillismo se ha convertido en una preocupación para la seguridad ciudadana, especialmente en las áreas urbanas. La Policía Nacional, en conjunto a Instituciones locales y nacionales ha venido realizando un trabajo focalizado para hacerle pie al fenómeno. En este trabajo se realizó una revisión histórica del pandillismo en Bogotá y un panorama continental. De la misma manera, se hace una descripción de los programas y estrategias que la Policía Nacional y las entidades públicas han realizado desde el año 2004 hasta el año 2015. Por último se realiza una evaluación del trabajo institucional enfocado en el sector del Codito, en la localidad de Usaquén.